ABSTRACT:
The article summarizes the most common as well as the most severe complications due to outdated prosthetic restorations. It is based on 38 clinical cases, examined at Faculty of Dental Medicine - Varna. The conclusions outline the mistakes which cause such dramatic results and the leading role of the dental clinician in considering the treatment prosthetic plan.

Key words: masticatory system rehabilitation, complications due to prostheses, neglecting general prosthetic principles,